11223420 has 48 divisors (see below), whose sum is σ = 33845280. Its totient is φ = 2762496.

The previous prime is 11223419. The next prime is 11223427. The reversal of 11223420 is 2432211.

11223420 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11223420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6415 + ... + 7974.

It is an arithmetic number, because the mean of its divisors is an integer number (705110).

Almost surely, 2^11223420 is an apocalyptic number.

11223420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11223420 is an abundant number, since it is smaller than the sum of its proper divisors (22621860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11223420 is a wasteful number, since it uses less digits than its factorization.

11223420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14414 (or 14412 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 11223420 is about 3350.1373106188. The cubic root of 11223420 is about 223.8936304067.

Adding to 11223420 its reverse (2432211), we get a palindrome (13655631).

It can be divided in two parts, 112 and 23420, that added together give a palindrome (23532).

The spelling of 11223420 in words is "eleven million, two hundred twenty-three thousand, four hundred twenty".